most citedA test of invariance of halo surface density for FIRE-2 simulations with cold dark matter and self-interacting dark matter

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astro-ph.CO2026

Probing cosmic anisotropy with galaxy clusters and supernovae

Shubham Barua, Sujit K. Dalui, Shantanu Desai

Using CDM and Padé-(2,1) cosmography, we study directional variations in the Hubble constant, , using galaxy cluster and Type Ia Supernovae (from Pantheon Plus) by the hemi…

astro-ph.CO2025★ 1 cited

A test of invariance of halo surface density for FIRE-2 simulations with cold dark matter and self-interacting dark matter

Sujit K. Dalui, Shantanu Desai

Numerous observations have shown that the dark matter halo surface density, defined as the product of core radius and halo central density of cored dark matter haloes is nearly con…

astro-ph.CO2025

Testing the cosmic distance duality relation using model-independent approach

Shubham Barua, Sujit K. Dalui, Rikiya Okazaki +1

In this work, we test the cosmic distance duality relation (CDDR) using the arbitrary redshift pivot Padé-(2,1) expansion methodology developed in arXiv:2509.16196. This approach a…